Victoria: Revolutions, an expansion to the original strategy title, Victoria - An Empire Under the Sun, has been released for Mac OS X by Virtual Programming. The add-on gives player extra years to play, as well as a much expanded tech tree and military system.

Here's the scoop on what's new:

* 15 extra years of game play. Lead your nation through the challenging interwar period!* An expanded tech tree to cover the interwar period, including aircrafts and carriers* A revamped election and politics system, adding a new level of realism to the game* An overhauled military system, which will be linked with the player’s policy decisions* A new economic system that brings more realism through various economic models